Principal Security Design Engineer

AECOM; United States; Remote; USD 93,000 - 119,000; Full time

Benefits offered by this job

Hybrid work model

Day 1 onboarding

Job summary

AECOM is seeking a Principal Security Design Engineer to lead high-level security engineering on major projects. The role spans design, risk assessment, and development of physical and electronic security solutions across Europe and globally.

Key tasks include master planning, risk mitigation, and providing counter-terrorism guidance in partnership with specialists. This position offers hybrid working and opportunities for career growth within a global infrastructure firm.

Qualifications

• Experience designing and delivering security engineering services.
• Strong CPD and personal development mindset.
• Business development experience and client-facing skills.
• Relevant security or engineering discipline degree/certification.
• Well-established expertise in security consultancy and risk assessment.

Responsibilities

• Manage high-level technical and strategic security engineering on new build and fit-out projects.
• Lead master planning from city-scale to mixed-use developments.
• Design physical security systems: locking, walling, glazing, doors, barriers, fencing.
• Develop electronic security designs for CCTV, access control, intruder detection and intercoms.
• Provide counter-terrorism guidance including HVM, blast and ballistic considerations.

Skills

Security engineering

Business development

CPD commitment

Education

Security/engineering degree or equivalent

Job description

Principal Security Design Engineer

Location: Ellenbrook, Hertfordshire, GB, AL10 9

Work Type: Work From Home

Start Date: 2026-10-10

Application Deadline: 2027-01-08T11:02:44.943

Company Description

Work with Us. Change the World. At AECOM, we're delivering a better world. Whether improving your commute, keeping the lights on, providing access to clean water, or transforming skylines, our work helps people and communities thrive. We are the world's trusted infrastructure consulting firm, partnering with clients to solve the world's most complex challenges and build legacies for future generations. There has never been a better time to be at AECOM. With accelerating infrastructure investment worldwide, our services are in great demand. We invite you to bring your bold ideas and big dreams and become part of a global team of over 50,000 planners, designers, engineers, scientists, digital innovators, program and construction managers, and other professionals delivering projects that create a positive and tangible impact around the world. We're one global team driven by our common purpose to deliver a better world. Join us.

Job Description

Start here. Grow here. We are currently seeking a Principal Designer for our Security and Technology Engineering team. This is a great opportunity to play a significant part in future construction projects in major cities across Europe and the world.

The AECOM Security & Technology Engineering team is a specialist group within the Building Engineering division that provides specialist Security and Technology design and support services to complement and enhance the design activities of the building engineering teams. The Buildings Engineering team consists of around 400 Engineers who work on large-scale construction projects and focus on project specialisms in London and worldwide. Some sectors we work in are major commercial build and fit‑out projects, large mixed‑used developments, CNI, and a variety of other sectors.

What You'll Do

• You will manage high‑level technical and strategic security engineering services on new build and fit‑out projects, throughout the RIBA stages, including:
• Conduct risk assessments, develop mitigation strategies, and write operational requirements.
• Lead master planning for projects from city‑level down to mixed‑use developments.
• Design physical security solutions, including electronic locking, walling, glazing, doors, barriers, and fencing.
• Create electronic security designs for video surveillance, access control, intruder detection, and intercom systems.
• Provide counter‑terrorism guidance, including on Hostile Vehicle Mitigation (HVM), bomb blast, and ballistics (in partnership with specialists).

Come Grow With Us

And let's not forget about the perks at AECOM. You'll enjoy a range of core and personalized benefits designed to support your future and well‑being, customized to fit your lifestyle. Take advantage of career development opportunities, our flexible hybrid working model to ensure a work‑life balance that suits your lifestyle, technical practice networks, AECOM University, and volunteering days.

Qualifications

Ready to push the limits of what's possible?

Requirements:

• Prior experience in Security Engineering
• RSES, CSyP, MsyI or PSP with a commitment to CPD and personal development.
• Business development experience.
• Relevant qualification in a security or engineering related discipline.
• Well‑established expertise in Security Consultancy

Additional Information

#BESPECIALISMS #BES&T

At AECOM, we are committed to maintaining a secure and trustworthy recruitment process and take any fraudulent hiring activity seriously. To support this commitment, all newly hired employees are required to attend an in‑person Day 1 onboarding at an AECOM office location as a condition of employment.

About AECOM

AECOM is the world's trusted infrastructure consulting firm, delivering professional services throughout the project lifecycle — from advisory, planning, design, and engineering to program and construction management. On projects spanning transportation, buildings, water, new energy, and the environment, our public‑ and private‑sector clients trust us to solve their most complex challenges. Our teams are driven by a common purpose to deliver a better world through our unrivaled technical and digital expertise, a culture of equity, diversity and inclusion, and a commitment to environmental, social and governance priorities. AECOM is a Fortune 500 firm with a revenue of $16.1 billion in fiscal year 2025. You can see how we are delivering sustainable legacies for future generations at aecom.com and @AECOM.

Freedom to Grow in a World of Opportunity

You will have the flexibility you need to do your best work with hybrid work options. Whether you're working from an AECOM office, remote location, or at a client site, you will be working in a dynamic environment where your integrity, entrepreneurial spirit, and pioneering mindset are championed. You will help us foster a safe and respectful workplace, where we invite everyone to bring their whole selves to work using their unique talents, backgrounds, and expertise to create transformational outcomes for our clients.

AECOM provides a wide array of compensation, benefits, and well‑being programs to meet the diverse needs of our employees and their families. We're the world's trusted global infrastructure firm, and we're in this together — your growth and success are ours too. Join us, and you'll get all the benefits of being part of a global, publicly traded firm — access to industry‑leading technology and thinking and transformational work with big impact and work flexibility.

As an Equal Opportunity Employer, we believe in each person's potential, and we'll help you reach yours. We are a Disability Confident Employer and will offer an interview to applicants who have a disability or long‑term condition, who meet the minimum/essential criteria for the role. Please let us know using the provided email if you would like to apply through the Disability Confident Interview Scheme. All your information will be kept confidential according to EEO guidelines.

Summary

• Type: Full‑time
• Function: Consulting
• Experience level: Associate
• Industry: Construction

#s1-Gen

Company DescriptionWork with Us. Change the World.At AECOM, we're delivering a better world. Whether improving your commute, keeping the lights on, providing access to clean water, or transforming skylines, our work helps people and communities thrive. We are the world's trusted infrastructure consulting firm, partnering with clients to solve the world's most complex challenges and build legacies for future generations. There has never been a better time to be at AECOM. With accelerating infrastructure investment worldwide, our services are in great demand. We invite you to bring your bold ideas and big dreams and become part of a global team of over 50,000 planners, designers, engineers, scientists, digital innovators, program and construction managers and other professionals delivering projects that create a positive and tangible impact around the world. We're one global team driven by our common purpose to deliver a better world. Join us.

Job DescriptionStart here. Grow here.We are currently seeking a Principal Designer for our Security and Technology Engineering team. This is a great opportunity to play a significant part in future construction projects in major cities across Europe and the world. The AECOM Security & Technology Engineering team is a specialist group within the Building Engineering division that provides specialist Security and Technology design and support services to complement and enhance the design activities of the building engineering teams. The Buildings Engineering team consists of around 400 Engineers who work on large-scale construction projects and focus on project specialisms in London and worldwide. Some sectors we work in are major commercial build and fit‑out projects, large mixed‑used developments, CNI and a variety of other sectors. What You'll DoYou will manage high level technical and strategic security engineering services on new build and fit‑out projects, throughout the RIBA stages, including: Conduct risk assessments, develop mitigation strategies and write operational requirements. Lead master planning for projects from city-level down to mixed‑use developments. Design physical security solutions, including electronic locking, walling, glazing, doors, barriers, and fencing. Create electronic security designs for video surveillance, access control, intruder detection, and intercom systems. Provide counter‑terrorism guidance, including on Hostile Vehicle Mitigation (HVM), bomb blast, and ballistics (in partnership with specialists).

Come Grow With UsAnd let's not forget about the perks at AECOM. You'll enjoy a range of core and personalised benefits designed to support your future and well‑being, customized to fit your lifestyle. Take advantage of career development opportunities, our flexible hybrid working model to ensure a work‑life balance that suits your lifestyle, technical practice networks, AECOM University, and volunteering days.

QualificationsReady to push the limits of what's possible?Requirements:Prior experience in Security EngineeringRSES, CSyP, MsyI or PSP with a commitment to CPD and personal development.Business development experience.Relevant qualification in a security or engineering related discipline.Well-established expertise in Security Consultancy

#BESPECIALISMS #BES&TAt AECOM, we are committed to maintaining a secure and trustworthy recruitment process and take any fraudulent hiring activity seriously. To support this commitment, all newly hired employees are required to attend an in‑person Day 1 onboarding at an AECOM office location as a condition of employment.

About AECOMAECOM is the world's trusted infrastructure consulting firm, delivering professional services throughout the project lifecycle - from advisory, planning, design and engineering to program and construction management. On projects spanning transportation, buildings, water, new energy and the environment, our public- and private-sector clients trust us to solve their most complex challenges. Our teams are driven by a common purpose to deliver a better world through our unrivaled technical and digital expertise, a culture of equity, diversity and inclusion, and a commitment to environmental, social and governance priorities. AECOM is a Fortune 5